The first network of marine protected areas (MPAs) in the high seas: The process, the challenges and where next

► In 2010 the world's first network of high seas MPAs was created in the NE Atlantic. ► 286,200 km2 of high seas was protected in 6 MPAs under the OSPAR Convention. ► Many scientific, legal and political challenges had to be overcome. ► 11 key lessons learned which may aid similar efforts elsewhere are emphasised. ► Designation is concluded to be only the beginning and many challenges lie ahead.